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abruzzese [7]
3 years ago
15

Why life is often referred to as carbon based

Physics
1 answer:
saveliy_v [14]3 years ago
5 0
Carbon<span> is an abundance on Earth, it's what binds molecules.

Essentially, it's the "glue" of the molecular world.</span>
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An ammeter is connected in series with a resistor of unknown resistance R and a DC power supply of known emf e. A student uses t
rosijanka [135]

Answer:

B:The actual power dissipated by the resistor is less than P because the ammeter had some resistance.

Explanation:

Here,power has been calculated using current I and total EMF \ε . So,P=EMF*current= ε I will represent total power dissipated in resistor and ammeter.

Now, this total power P has been dissipated in both resistor and ammeter. So, power dissipated in resistor must be less than P as some power is also dissipated in ammeter because it has non-zero resistance.

So, the answer is B:The actual power dissipated by the resistor is less than P because the ammeter had some resistance.

Note that option A,C and E are ruled out as they state power dissipated by resistor is greater than or equal to P which is false.

Also,option D is ruled out as ammeter is connected in series.

8 0
4 years ago
Ted lifts a 10N weight at a height of 1.5 m in 1
masha68 [24]

Answer:

D. Ted expanded more power.

Explanation:

Given the following data;

For Ted.

Force = 10N

Height = 1.5m

Time = 1 seconds

To find Ted's power;

Power = workdone/time

But workdone = force * distance

Workdone = 10 * 1.5

Workdone = 15 Nm

Power = 15/1

Power = 15 Watts.

For Johnny.

Force = 10N

Height = 1.5m

Time = 2 seconds

To find Ted's power;

Power = workdone/time

But workdone = force * distance

Workdone = 10 * 1.5

Workdone = 15 Nm

Power = 15/2

Power = 7.5 Watts

Therefore, from the calculations we can deduce and conclude that Ted expanded more power.

5 0
3 years ago
What are the movements of boiling water? I'm looking for if they speed up, like that sort of thing. Not how, not why, just what
fgiga [73]
When a substance is heated, the molecules begin to vibrate faster and the space between molecules increases. So it would be speeding up.
6 0
4 years ago
HEY CAN ANYONE PLS ANSWER DIS!!!!!!
snow_lady [41]

Answer:

Explanation:

1.wrap bar magnet in a plastic baggie and remove the iron filings from the mixture by using a bar magnet. Place a small piece of scrap paper on the scale and “tare” the scale. Then place filings on the scrap paper and record (e) the mass of the iron filings. Don't throw out the iron–save it to be recollected.

2.When sand is added to water it either hangs in the water or forms a layer at the bottom of the container. Sand therefore does not dissolve in water and is insoluble. It is easy to separate sand and water by filtering the mixture. Salt can be separated from a solution through evaporation.

3.Sand (mostly silicon dioxide) is not.

Pour the salt and sand mixture into a pan.

Add water. ...

Heat the water until the salt dissolves. ...

Remove the pan from heat and allow it to cool until it's safe to handle.

Pour the salt water into a separate container.

Now collect the sand.

Pour the salt water back into the empty pan.

Heat the salt water until the water boils. Continue boiling it until the water is gone and you're left with the salt.

Another way you can separate the salt water and sand is to stir up the sand/salt water and pour it through a coffee filter to capture the sand.

8 0
4 years ago
Read 2 more answers
Each statement below represents a feature that has been claimed to exist on Mars. Sort the statements into the correct bin accor
Wittaler [7]

Answer:

Earth’s Moon:

It has no atmosphere due to weak gravity. Venus: It is too hot for liquid water.

Europa:

Is too cold for liquid water Mars: Scientists believe it used have flowing water Europe is a small moon of the planet Jupiter and according to studies, it is confirmed that the moon is too cold to have liquid water.

Venus: Venus is generally known as an extremely hold planet where liquid water would immediately turn into gas.

Mars:

is popularly identified with aliens since several theories talk about a prehistoric alien race that lived on it’s surface.

5 0
4 years ago
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